With a Happy Family, I Traveled to a Different World!

Gu Yan was reborn in a different world, killed his whole family at his birthday party, acquired the Devouring System, changed his appearance, befriended the Son of God and the Saint, fought the Demon Lord and the Demon Saint, broke into the "White Jade Immortal Capital", and stepped into the "Void Lawless Heaven"! Demon Lord Gui Qing: "Didn't you say let me go?" Gu Yan: "A man's mouth is deceptive. How can you believe the words of the human race?" Capricorn Immortal Lord: "You don't mean what you say! You are the pride of the human race! You are shameless!" Gu Yan: "Of course, I am Sword Killer Immortal Gu Yan. As everyone knows, I, Gu Yan, am not trustworthy!" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.